books.google.com - The Tang dynasty is often called China’s “golden age,” a period of commercial, religious, and cultural connections from Korea and Japan to the Persian Gulf, and a time of unsurpassed literary creativity. Mark Lewis captures a dynamic era in which the empire reached its greatest geographical extent...http://books.google.com/books/about/CHINA_S_COSMOPOLITAN_EMPIRE.html?id=vpgVvAh2_EsC&utm_source=gb-gplus-shareCHINA'S COSMOPOLITAN EMPIRE